Well Data Manager / Well Summary / 9/09a-A20

9/09a-A20

Present

Well Header

Well No
9/09a-A20
NSTA DEN No
5799
Well Name
--
Drill Seq No
20
Quadrant / Block
9 / 9 a
Surface Location
59.743286, 1.670317
Source Datum
ED50
Subsea Well
Unknown
Platform
A
Slot No
C01
Operator
SERICA ENERGY (UK) LIMITED
Original Operator
--
Sub Area Operator
SERICA ENERGY (UK) LIMITED
Licence No
P90
Licence Type
Production
Spud Date
1996-04-07
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

9/09a-A20 Original
Completed (Shut In) View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Gas and Oil Well
Dev Type
Producer
Convention
--
Primary Target
H13
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
173.000
Ground Elev (m)
--
Water Depth (m)
122.00
TD MD (m)
4006.500
TD TVDSS (m)
3833.000
TD Datum Depth (m)
50.800
TD Datum Type
Kelly Bushing
Spud Date
1996-04-07
TD Reached
1996-05-23
Completion Date
1996-06-28
Release Date
2000-06-28

Formation Tops (35)

Wellbore Formation Era MD (m) TVDSS (m) Provider
9/09a-A20 Nordland Cenozoic 123.000 -103.597 BGS LithoStrat Upper
Frigg Formation 2100.000 995.424 BGS LithoStrat Upper
Balder Cenozoic 2382.000 995.424 BGS LithoStrat Upper
Sele Mesozoic 2596.000 995.424 BGS LithoStrat Upper
Forties Mesozoic 2714.000 995.424 BGS LithoStrat Upper
Lista Mesozoic 2900.000 995.424 BGS LithoStrat Upper
Andrew Cenozoic 3580.000 995.424 BGS LithoStrat Upper
Maureen Mesozoic 4226.000 995.424 BGS LithoStrat Upper
Shetland Mudstone 4549.000 995.424 BGS LithoStrat Upper
Kimmeridge Clay 5627.000 995.424 BGS LithoStrat Upper
Upper Heather 5767.000 995.424 BGS LithoStrat Upper
Lower Heather 5891.000 995.424 BGS LithoStrat Upper
Intra Lower Heather 5995.000 995.424 BGS LithoStrat Upper
Upper Silty Formation 6067.000 995.424 BGS LithoStrat Upper
U3 Unit 6157.000 995.424 BGS LithoStrat Upper
U2 Unit 6201.000 995.424 BGS LithoStrat Upper
U1 Unit 6214.000 995.424 BGS LithoStrat Upper
J32B Unit 6222.000 995.424 BGS LithoStrat Upper
J32A Unit 6230.000 995.424 BGS LithoStrat Upper
J31D Unit 6236.000 995.424 BGS LithoStrat Upper
J31C Unit 6237.000 995.424 BGS LithoStrat Upper
J31B Unit 6243.000 995.424 BGS LithoStrat Upper
J27 Unit 6259.000 995.424 BGS LithoStrat Upper
J26B Unit 6265.000 995.424 BGS LithoStrat Upper
J26A Unit 6278.000 995.424 BGS LithoStrat Upper
J25B Unit 6304.000 995.424 BGS LithoStrat Upper
B/C Coal 6313.000 995.424 BGS LithoStrat Upper
J22V6 Unit 6317.000 995.424 BGS LithoStrat Upper
J22V5 Unit 6335.000 995.424 BGS LithoStrat Upper
Dunlin Mesozoic 6339.000 995.424 BGS LithoStrat Upper
J04E Unit 6340.000 995.424 BGS LithoStrat Upper
J04D Unit 6344.000 995.424 BGS LithoStrat Upper
J04C Unit 6355.000 995.424 BGS LithoStrat Upper
J04B Unit 6365.000 995.424 BGS LithoStrat Upper
Eriksson 6373.000 995.424 BGS LithoStrat Upper

Lithology Intervals

No lithology intervals ingested for this well.

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
9/09a-A20 0 0 0 35 35 0 0 0 0 View

Hydrocarbon Occurrence (21)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
9/09a-A20 Oil shows OS BUSF 6066.800160000001 -- 91 m thick
9/09a-A20 Oil shows OS BUU3 6157.301376 -- 44 m thick
9/09a-A20 Oil shows OS BUU2 6201.000552 -- 13 m thick
9/09a-A20 Oil shows OS BUU1 6214.298976 -- 8 m thick
9/09a-A20 Oil shows OS J32B 6221.800104 -- 8 m thick
9/09a-A20 Oil shows OS J32A 6229.70052 -- 6 m thick
9/09a-A20 Oil shows OS J31D 6235.698984000001 -- 2 m thick
9/09a-A20 Oil shows OS J31C 6237.201648 -- 6 m thick
9/09a-A20 Oil shows OS J31B 6242.901408 -- 16 m thick
9/09a-A20 Oil shows OS J27 6258.601656000001 -- 6 m thick
9/09a-A20 Oil shows OS J26B 6264.700704 -- 13 m thick
9/09a-A20 Oil shows OS J26A 6278.099712 -- 26 m thick
9/09a-A20 Oil shows OS J25B 6304.400904 -- 9 m thick
9/09a-A20 Oil shows OS BCCL 6313.099896000001 -- 4 m thick
9/09a-A20 Oil shows OS 22V6 6316.800168000001 -- 18 m thick
9/09a-A20 Oil shows OS 22V5 6334.999776 -- 4 m thick
9/09a-A20 Oil shows OS Dunlin Group 6339.300504 -- 1 m thick
9/09a-A20 Oil shows OS J04E 6340.300248 -- 4 m thick
9/09a-A20 Oil shows OS J04D 6344.101104 -- 11 m thick
9/09a-A20 Oil shows OS J04C 6354.6990000000005 -- 10 m thick
9/09a-A20 Oil shows OS J04B 6365.098776 -- 8 m thick

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
9/09a-A20 83.05799865722656 6394.2470703125 11 0 2026-08-08 02:29:31.770661+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
9/09a-A20
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 4996.0 6394.4 13832
bulk_density CDEN Energective CorrectedLOGS 4995.9170592 6394.322451360001 9076
bulk_density RHOB OGA Batch Unzipped 4996.1292 6394.3992 9072
caliper CALI OGA Batch Unzipped 4364.1264 6378.0924 13216
caliper CLD Energective CorrectedLOGS 4364.22674016 6378.01586472 13215
comp_sonic DTC Energective CorrectedLOGS 814.1118998400001 6385.78817328 25174
comp_sonic DTCO OGA Batch Unzipped 814.1208 6385.56 25158
comp_sonic DT OGA Batch Unzipped 814.1 6385.7 38350
deep_resistivity RES_DEP OGA Batch Unzipped 814.1 6392.3 38621
deep_resistivity ILD Energective CorrectedLOGS 814.26429984 6392.34128184 25289
deep_resistivity RDEEP OGA Batch Unzipped 814.1208 6392.2656 25342
density_correction CDRH Energective CorrectedLOGS 4995.7646592 6394.322451360001 9077
density_correction DRHO OGA Batch Unzipped 4985.004 6394.3992 9145
density_correction DENC OGA Batch Unzipped 4985.0 6394.4 13942
gamma_ray GR OGA Batch Unzipped 83.058 6386.322 41360
gamma_ray GRI Energective CorrectedLOGS 83.058 6386.397742800001 41362
med_resistivity ILM Energective CorrectedLOGS 814.26429984 6392.34128184 25270
med_resistivity RES_MED OGA Batch Unzipped 814.1 6393.3 38631
pef CPEF Energective CorrectedLOGS 4995.7646592 6344.33586096 7281
pef PEF OGA Batch Unzipped 4985.004 6394.3992 9145
porosity PHIT OGA Batch Unzipped 6097.2192 6374.2824 1792
potassium POTA OGA Batch Unzipped 4985.004 6400.9524 9190
thorium THOR OGA Batch Unzipped 4985.004 6400.9524 9190
tvdss SS Energective CorrectedLOGS 82.9056 6394.474851360001 41416
tvdss TVDSS OGA Batch Unzipped 0.6096 6400.9524 41998
uranium URAN OGA Batch Unzipped 4985.004 6400.9524 9190
vshale VSH OGA Batch Unzipped 5606.6436 6388.9128 3305
water_resistivity RW OGA Batch Unzipped 0.0 6400.9524 42002
water_sat SWT OGA Batch Unzipped 6097.2192 6374.2824 1792

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
9/09a-A20 210 1950.994 995.424 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_9\9_09a-A20\WELL_PATH\WDD_QC\9_09a-A20_wdd_WDD_FILE_1681792_DATACO_MAPPED.csv

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